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PiXL GetIT!
GCSE Biology
Topic – Diseases   
© Copyright The PiXL Club Ltd, 2017
This resource is strictly for the use of member schools for as long as they remain members of The PiXL Club. It may not be copied, sold nor transferred to a third party or used by the school after membership ceases. Until such time it may be freely used within the member school.
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2. Pro = Before Karyo = Nut (Nucleus)
GetIT – Diseases
All living things are made of cells, they are the basic unit of all life. Some pathogens can also be made of cells. These are called prokaryotes.
Pro = Before Karyo = Nut (Nucleus)
Pathogens are microorganisms that cause infectious disease.
Pathogens may infect plants or animals and can be spread by
direct contact, by water or by air.
Pathogens depend on the host to provide the suitable conditions and nutrients that they need to grow and reproduce.
Pathogens can be bacteria, viruses, fungi or protists.

3. Match IT Pathogen Bacteria Virus Immunity Communicable disease
Prokaryotic cells. Can cause diseases such as gonorrhoea. Most are killed by antibiotics.
Bacteria
Specific protein on the surface of the pathogen.
Virus
A microorganism that causes infectious disease
Immunity
Ability to resist disease
Communicable disease
Live and reproduce inside cells, causing cell damage. Cause diseases such as measles.
Phagocyte
A white blood cell that engulfs and digests the pathogen.
Antigen
A disease that is not caused by a pathogen.
Antibody
Protein produced by white blood cells. Specific to the pathogen. Attaches to antigen.
Vaccine
Infectious disease that is easily spread
Non communicable disease
Where a dead, weakened or inactive version of the pathogen is injected into the body to stimulate an immune response.

4. Match IT - Answers Pathogen Bacteria Virus Immunity
A microorganism that causes infectious disease
Bacteria
Prokaryotic cells. Can cause diseases such as gonorrhoea. Most are killed by antibiotics.
Virus
Live and reproduce inside cells, causing cell damage. Cause diseases such as measles.
Immunity
Ability to resist disease
Communicable disease
Infectious disease that is easily spread
Phagocyte
A white blood cell that engulfs and digests the pathogen.
Antigen
Specific protein on the surface of the pathogen.
Antibody
Protein produced by white blood cells. Specific to the pathogen. Attaches to antigen.
Vaccine
Where a dead, weakened or inactive version of the pathogen is injected into the body to stimulate an immune response.
Non communicable disease
A disease that is not caused by a pathogen.

5. Label IT

6. Label IT - Answers

7. The immune response…what is happening at each stage?
Label IT
The immune response…what is happening at each stage?

8. Label IT- Answers
Antibodies are made and released into the blood much faster and in larger amounts.
Pathogens are destroyed by the antibodies much faster.
White blood cells detect pathogens.

9. What is the difference between bacteria and viruses?
Get IT
Answer the questions
What is a pathogen?
What are bacteria?
What are viruses?
What is the difference between bacteria and viruses?
What is a vaccine?
Name two types of white blood cell.
How do white blood cells protect you from disease?
What does the word immunity mean?
What is the difference between communicable and non-communicable diseases?

10. Self assessment Get IT- Answers What is a pathogen?
Microorganism that causes disease.
What are bacteria?
A single celled microorganism that has no nucleus. This causes disease by reproducing and producing toxins.
What are viruses?
Viruses are pathogens. Need to reproduce inside other cells, always damage cells
What is the difference between bacteria and viruses?
Viruses are much smaller than bacteria and viruses are not cells but bacteria are
What is a vaccine?
An injection of a dead or weakened version of the pathogen
Name two types of white blood cell.
Lymphocyte and phagocyte
How do white blood cells protect you from disease?
Lymphocyte release antibodies and phagocytes engulf and digest the pathogen
What does the word immunity mean?
When your already has the antibodies so that the pathogen does not harm you
What is the difference between communicable and non-communicable diseases?
Communicable diseases can be transmitted through contact and non communicable diseases cannot.